| 摘要 |
<p>Provided is a gypsum board which can sufficiently suppress bending, even when produced using a starting gypsum material that contains a large amount of water-soluble salts as impurities. Further, the gypsum board is unproblematic in compressive strength, hardening time, pH, and so on. A gypsum board produced by filling a gypsum-containing slurry into a frame mold and hardening the slurry, wherein the slurry contains both calcined gypsum and 0.2 to 5.0 parts by mass of a cement per 100 parts by mass of the calcined gypsum.</p> |
